But you conveniently forgot the part that immediately precedes that which states "perpetual, irrevocable, worldwide license to access and view such content":
"Videos and Images Offered by Community Members. Community Members, including Independent Broadcasters, may create or otherwise make available video, photo, or other content containing content and intellectual property that they own or have a license to use ("Member Content"). In making available Member Content, you are representing and warranting to the Company that you have all the necessary rights and permissions to make such content available through the Platform and to offer to all Community Members who acquire the Member Content a perpetual, irrevocable, worldwide license to access and view such content through the Platform. To be clear, you understand and agree that once a Community Member acquires Member Content uploaded by you in the Community Member's Account on the Platform, you have granted to that Community Member a perpetual, irrevocable, worldwide license to access and view such content through the Platform, and represent that you have all necessary rights and permissions to grant such license."
Which part of "purchased" confused you into equating it with tips and gratuity?